chore(i18n)!: export plurals from index

breaking: `@mtcute/i18n/*` imports are now all in `@mtcute/i18n`

packages/i18n/package.json

@@ -11,10 +11,7 @@
     "scripts": {
         "build": "pnpm run -w build-package i18n"
     },
-    "exports": {
-        ".": "./src/index.ts",
-        "./plurals/*": "./src/plurals/*"
-    },
+    "exports": "./src/index.ts",
     "devDependencies": {
         "@mtcute/core": "workspace:^",
         "@mtcute/dispatcher": "workspace:^"

packages/i18n/src/index.ts

@@ -1,6 +1,8 @@
 import { I18nStrings, I18nValue, MtcuteI18nAdapter, MtcuteI18nFunction, OtherLanguageWrap } from './types.js'
 import { createI18nStringsIndex, extractLanguageFromUpdate } from './utils.js'
 
+export * from './plurals/english.js'
+export * from './plurals/russian.js'
 export * from './types.js'
 export { extractLanguageFromUpdate } from './utils.js'